Alex Doolan tops Shield run-scoring charts

If Sheffield Shield runs is the currency that matters most at the selection table, Alex Doolan is on track for a certain Test recall.

Doolan is the leading Shield run-scorer after three rounds, having helped himself to 350 runs at 58.33.

Selectors will obviously use a more complex formula when assessing which batsmen deserve to be called up for Australia's four-Test series opener against India that starts on December 6.

It is also worth noting that plenty of batsmen on the cusp of the Test XI, such as Matthew Renshaw, haven't featured in as many Shield games as Doolan.

But there is no denying the Tasmanian, who played all four of his Tests in 2014 at first drop but has since reinvented himself as an opener, is in cracking form.

Doolan started his Shield season with a knock of 115 during a game in Brisbane, where only one other batsman from either team passed 50.

The 32-year-old produced a half-century at the WACA then scores of 53 and 90 in this week's draw at the SCG.

The right-hander batted with great poise to march Tasmania to 1-145 in their final-day pursuit of 350 in Sydney, ticking the scoreboard over while resisting an attack headlined by Test offspinner Nathan Lyon.